Gmail Services Middleware

Capabilities

• OAuth Delegation

  Handles the complete Google OAuth flow, auto-acquires and maintains refresh_token, with proxy network support.
• Secure Mail Sending

  Send emails via the Gmail API with text and HTML support, plus built-in daily / hourly rate limiting.
• Inbox Polling

  Efficient inbox checks powered by the Gmail History API, with incremental updates and automatic cursor recovery.
• Stateless Architecture

  All durable data (tokens, account mappings, history cursors) is stored by the caller. Zero local persistence.